Renesas R5F10RJAGFA#X0

Overview

R5F10RJAGFA#X0 from Renesas is a 52-pin LQFP (10 × 10 mm, 0.65 mm pitch) 16-bit RL78/L12 microcontroller with 32 KB flash, 2 KB data flash, 1.5 KB RAM, integrated LCD controller/driver (up to 35 seg × 8 com), and ultra-low-power operation (0.64 µA in RTC+LVD halt mode). It targets battery-powered LCD display systems such as smart meters, thermostats, and industrial HMI panels.

For engineers reviewing the R5F10RJAGFA#X0 datasheet, R5F10RJAGFA#X0 pinout, R5F10RJAGFA#X0 application, or R5F10RJAGFA#X0 equivalent, key selection criteria include its 52-pin LQFP-0.65mm package, 32 KB code flash with background data flash erase/program, 10-bit ADC with internal reference, and support for capacitor-split and internal-boost LCD drive methods under 1.6–5.5 V supply.

Technical Context

The R5F10RJAGFA#X0 implements the RL78 16-bit CISC Harvard architecture with 3-stage pipeline, delivering 31 DMIPS at 24 MHz. Its on-chip high-speed oscillator achieves ±1% accuracy across 1.8–5.5 V and −20°C to +85°C, and supports snooze mode for low-latency wake-up from ultra-low-power states.

It integrates a full-featured LCD controller supporting waveform types A/B, 16-step contrast adjustment, blinking control, and three drive methods - capacitor split (0.12 µA LCD current), internal voltage boost (0.63 µA at VDD = 3.0 V), and resistance division - all configurable via dedicated registers without external components.

Key Specifications

Pinout & Package

Package: 52-pin LQFP, 10 × 10 mm, 0.65 mm pitch (PLQP0052JA-A / PLQP0052JD-B).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F10RJCGFA#X0, the R5F10RJAGFA#X0 provides guaranteed operation up to +105°C for industrial deployments, while R5F10RLAGFA#X0 trades compact 52-pin packaging for expanded I/O and LCD capacity - making R5F10RJAGFA#X0 the optimal balance of thermal robustness, integration, and board space efficiency.

Availability

R5F10RJAGFA#X0 is available at Aetrix Electronics and suitable for smart metering, HVAC control, and industrial HMI applications requiring stable component supply, long-term lifecycle support, and industrial-grade temperature performance.

Supply support for R5F10RJAGFA#X0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/L12 product line delivers true low-power MCUs optimized for LCD-based applications, integrating an on-chip LCD controller/driver, ultra-low-power modes, and functional safety features for cost-sensitive industrial and consumer displays.

FAQ

What is the maximum operating frequency and power consumption of the R5F10RJAGFA#X0?

The R5F10RJAGFA#X0 operates at up to 24 MHz with a high-speed on-chip oscillator (±1% accuracy). Its active power consumption is 62.5 µA/MHz, and it achieves 0.64 µA in halt mode with RTC and LVD enabled - verified per R01DS0157EJ0223 Rev.2.23 datasheet Section 1.1.

Does the R5F10RJAGFA#X0 support multiple LCD drive methods, and how are they configured?

Yes, the R5F10RJAGFA#X0 supports capacitor-split, internal voltage boost, and resistance division LCD drive methods. Configuration is done via LCD control registers (LCDCR0–LCDCR2) and requires corresponding external components - e.g., CAPL/CAPH pins for boost mode, or resistors for division mode - as detailed in Section 24.3 of the R5F10RJAGFA#X0 datasheet.

What is the LCD segment and common drive capability of the R5F10RJAGFA#X0?

The R5F10RJAGFA#X0 supports up to 35 segments × 8 commons (280 segments) or 39 segments × 4 commons (156 segments), with dedicated SEG0–SEG36 and COM0–COM7 pins. This matches the 52-pin package's allocation and is confirmed in Table 1-1 and Section 1.6 of the RL78/L12 datasheet R01DS0157EJ0223.

How does the R5F10RJAGFA#X0 handle functional safety for IEC 60730 compliance?

The R5F10RJAGFA#X0 includes hardware-level safety features required for Class B compliance: flash memory CRC calculation, RAM parity error detection, SFR write protection, illegal memory access detection, clock frequency monitoring, and ADC self-test - all documented in Section 1.1 "Safety Features" of the R01DS0157EJ0223 datasheet.

What are the key differences between R5F10RJAGFA#X0 and R5F10RJCGFA#X0?

The R5F10RJAGFA#X0 and R5F10RJCGFA#X0 share identical 52-pin LQFP packaging, 32 KB flash, 2 KB data flash, and peripheral sets. The sole difference is temperature grade: R5F10RJAGFA#X0 is rated for −40°C to +105°C (industrial), while R5F10RJCGFA#X0 is rated for −40°C to +85°C (consumer), as specified in Figure 1-1 and Table 1-1 of R01DS0157EJ0223.